72266625 has 24 divisors (see below), whose sum is σ = 130274664. Its totient is φ = 38541600.

The previous prime is 72266591. The next prime is 72266627. The reversal of 72266625 is 52666227.

It can be written as a sum of positive squares in 4 ways, for example, as 288369 + 71978256 = 537^2 + 8484^2 .

It is not a de Polignac number, because 72266625 - 2⁶ = 72266561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72266625.

It is not an unprimeable number, because it can be changed into a prime (72266627) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30994 + ... + 33243.

It is an arithmetic number, because the mean of its divisors is an integer number (5428111).

Almost surely, 2^72266625 is an apocalyptic number.

72266625 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72266625 is a deficient number, since it is larger than the sum of its proper divisors (58008039).

72266625 is a wasteful number, since it uses less digits than its factorization.

72266625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64258 (or 64245 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 72266625 is about 8500.9778849259. The cubic root of 72266625 is about 416.5296527279.

The spelling of 72266625 in words is "seventy-two million, two hundred sixty-six thousand, six hundred twenty-five".